Comparison Chart Details

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This comparison chart shows each generators capabilities, specifications, and uncertainty values to help you determine which suits your calibration needs best.

Note: on the Model 2500, the “ST” model is not shown, the differences in this model are the chamber size which is 15" x 15" x 12" (38.1 cm x 38.1 cm x 30.5 cm) plus on this model you can add a high air flow (HAF) of 10 to 40 Liters per minute.

Generator Comparison Chart

SPECIFICATIONS	Model 1200	Model 2500	Model 2900	Model 9500	Model 3920
Relative Humidity Range:	10% to 95%	10% to 95%	10% to 98%	5% to 98%	0.00003% to ~50%
Frost Point Temperature Range:	–18 to 0 °C	Requires external PC and software	-33.60 to 0 °C	-32 to 0 °C	-95 to 0.01 °C
Dew Point Temperature Range:	–20 to 50 °C	Requires external PC and software	-36.94 to 70 °C	-35 to 70 °C	-50 to 10 °C
Temperature Range:	10 to 60 °C	0 to 70 °C	-10 to 72 °C	0 to 72 °C	-80 to 12 °C
Temperature Control Stability:	±0.04 °C	0.01 °C	0.002 °C	0.01 °C	0.008 °C
Temperature Uniformity:	0.1 °C	0.1 °C when operating at chamber temperatures within 10 °C of abmient	0.04 °C	0.04 °C	N/A
Temperature Heating Rate:	2 Minutes per °C (average)	2.5 Minute per °C (average)	2 Minute per °C (average)	0.5 °C per Minute (average)	2 Minute per °C (average)
Temperature Cooling Rate: (to 0 °C)	4 Minutes per °C (average)	2.5 Minute per °C (average)	2 Minute per °C (average)	0.5 °C per Minute (average)	2 Minute per °C (average)
Temperature Specification:	0.05 °C	0.06 °C	0.027 °C	0.018 °C	0.027 °C
Gas Type:	Air or Nitrogen	Air or Nitrogen	Air or Nitrogen	Air or Nitrogen	CO2 free Air or Nitrogen with ambient pressure frost point <–80 °C
Gas Pressure Rating: (MAWP)	174 psiG	175 psiG	175 psiG	350 psiG	80 to 300 psiG
Gas Flow Rate Range:	2 to 10 L/min	5 to 20 L/min	10 to 50 L/min	10 to 100 L/min	0.5 to 10 L/min
Gas Flow Rate Specification:	1.0 L/min	2% of full Scale	5% of full scale	2% of full Scale	2% of full scale
Saturation Pressure Range:	Ambient to 152 psiA	Ambient to 150 psiA	Ambient to 160 psiA	Ambient to 325 psiA	~Ambient to 250 psiA
Saturation Pressure Specification:	0.08% of FS psiA	±0.075 psiA (low range)	±0.032 psiA	±0.0045 psiA (low range)	0.05 psiA
		±0.225 psiA (high range)		±0.03 psiA (high range)
Test Chamber Pressure Range:	Ambient	Ambient	Ambient	Ambient to 20 psiA	Ambient to 50 psiA
Test Chamber Pressure Specification:	0.08% of FS psiA	±0.075 psiA	0.02% of reading	±0.0023 psiA	0.02% of reading
Display Resolution:	0.01	0.01	0.001	0.001	0.001
Test Chamber Dimensions:	6" x 6" x 6" (152 mm x 152 mm x 152 mm)	12" x 12" x 10" (305 mm x 305 mm x 254 mm)	12" x 12" x 10" (305 mm x 305 mm x 254 mm)	12" x 12" x 12" (305 mm x 305 mm x 305 mm)	N/A
Physical Dimensions:	11.85" H x 24.10" W x 14.11" D (30.1 cm x 61.2 cm x 35.8 cm)	19” H x 33” W x 20” D (482.6 mm x 838.2 mm x 508 mm)	22" H x 36" W x 23" D (558.8 mm x 432 mm x 584.2 mm)	38.25” H x 60” W x 36” D (971.5 mm x 1524.0 mm x 914.4 mm)	37.9" H x 23" W x 34.9" D (965mm x 585mm x 889mm)

UNCERTAINTY
SPECIFICATIONS	Model 1200	Model 2500	Model 2900	Model 9500	Model 3920
Dew/Frost Point Uncertainty:	0.1 °C	Requires external PC and software	0.08 °C/0.05 °C	0.05 °C	(Dew –50 to 10 °C) 0.01% \|R\| + 0.07 °C (Frost >= –90 °C) 0.05% \|R\| + 0.07 °C (Frost <–90 °C) 1.7% \|R\| –1.415 °C
RH Uncertainty:	0.5%	0.5%	0.5% of reading	0.3% of reading	N/A
Test Chamber Temperature Uncertainty:	0.05 °C	0.06 °C	0.031 °C	0.021 °C	0.034 °C

Note: The specifications listed, and the information contained within this web page are subject to change without notice.

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